/***************************************************************************
 *   Copyright (C) 2008 by Petras Zdanavičius                              *
 *   petraszd@gmail.com                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef PZSCULPTCOMMANDSTACK_H
#define PZSCULPTCOMMANDSTACK_H

#include <QVector>
#include "command.h"

namespace PZSculpt
{

/**
 @author Petras Zdanavičius <petraszd@gmail.com>
*/
class CommandStack
{
   protected:
      QVector<Command*> m_commands;
      int m_current;
      int m_max;

   public:
      CommandStack ( int max );
      ~CommandStack();

      void push( Command * command );
      void undo();
      void redo();
      bool canUndo();
      bool canRedo();
      void clear();

   protected:
      void clearTop();
};

}

#endif
